Connect to 500+ health metrics

Build smarter products with connected health data

The scalable platform for companies to connect to all types of wearable, sensor, app and blood data.

Terra API connects apps to health and fitness data from Garmin, Fitbit, Apple Health, Google Fit, Oura, WHOOP, Polar, Eight Sleep, Strava, Withings, Samsung Health, Cronometer, MyFitnessPal, Suunto, Wahoo, and 50+ additional providers through a single integration.

Terra API supports activity, sleep, nutrition, heart rate, HRV, VO2max, body metrics, menstrual cycle, and continuous glucose monitoring (CGM) data types.

Terra is HIPAA compliant and SOC 2 certified. Data is encrypted in transit and at rest. Terra is trusted by health apps, clinical research teams, insurance companies, and corporate wellness platforms.

Terra was founded in 2020 by Kyriakos Eleftheriou and is a Y Combinator W21 company.

The most complete
health data platform
that exists

From connecting health data sources to data normalization, user authentication, health scores and rewards. We made sure we built everything your health application needs.

TOP

Integrations

Connect your app to your users’ sensors, wearables, apps, and biomarkers, all through one unified API. Get unlimited access to all types of integrations, no backend work needed.

Health Scores

We transform raw health metrics such as HRV, respiratory rate, sleep and activity into validated scores including recovery, strain, stress, and immunity. Backed by research and adapted to your individual users' baseline values.

Rewards

Give your users points for moving, perks for sleeping, and streaks for staying consistent. Set up your reward and streak system without any coding.

Blood Labs

Ship custom home kits to the doorstep, send phlebotomists on demand, and send lab results straight into your app. Hormones, vitamins, cholesterol, glucose and all the biomarkers that wearables can't touch.

10+ features loved by
engineering teams

From connecting health data sources to data normalization, user.

Connect data
Wahoo Fitness
Zwift
Fitbit

Authentication

From connecting health data sources to data normalization, user authentication, health scores and rewards: We made. From connecting health data sources to data normalization, user authentication.

Access elite team performance data

Modern teams use dozens of performance platforms like force plates, GPS, strength testing, motion tracking. Terra's Teams API turns that fragmented ecosystem into one clean, programmable layer.

Team data in one view

Get one clean view of athletes, tests, and sessions, even when teams use different tools. We guarantee fewer 'which numbers are right?' moments.

Monitor team workloads

Aggregate training session load and performance metrics in real time. Help coaches to spot individual team trends or risky patterns early.

Build athlete dashboards

Build dashboards and longitudinal views once and keep them working as teams change platforms. All data remains consistent through our unified schema.

Build research pipelines

Build longitudinal analysis, cohort studies, and modeling with clean, consistent data. Same schema today, same schema next year.

Ship reports to coaches

Webhooks push updated performance and session data straight into your reporting pipeline. Coaches get timely, consistent reports.

Centralize athlete data

Each athlete exists once, even if the team uses multiple platforms. You can link them to your internal IDs, manage status centrally, and avoid duplication or drift.

The world's best health
products run on Terra's data

Over 1000+ developers are using Terra APIs to build and scale health data integrations.

Learn from Terra and the best health builders

Subscribe to Terra API's podcast to learn what the best founders in health tech do.

Eswar Veluri, CTO of Equinox

EQUINOX podcast thumbnail

Ready to scale? Contact us:

"Can we integrate CGM + wearable sleep data into our insurance rewards system, and can Terra normalize the data across 100K devices for us?"

GDPR, HIPAA & SOCII

Why security teams love us

Terra API was built from the ground up with privacy and security at its core. Every data flow from wearable to API is encrypted, monitored, and isolated across environments. Our compliance with GDPR, HIPAA, and SOC 2 ensures that your users’ most sensitive health data is always handled according to the highest global standards.

GDPR, CCPA & HIPAA compliant
Data encrypted in transit (TLS 1.2+) and at rest (AES-256)
SOC 2 Type II audit completed
Regular third-party penetration tests performed
Role-based access control (RBAC) + least privilege for all systems
Vulnerability scanning & patching on a set schedule
Isolated environments (dev/stage/prod) to protect production
Data subject rights supported
Data minimization and purpose limitation principles enforced

Grow your users on the most scalable health platform

Terra API is the most reliable, robust and scalable solution to connect your health application to all types of health data sources.

17,556,729,600

Health data events processed this year

Frequently Asked Questions

What is Terra API?
Terra is a health and fitness data API that gives developers a single integration to connect apps with wearables, health apps, medical devices, and sensors. One API call returns standardised data from 500+ providers — including Garmin, Fitbit, Apple Health, Oura, WHOOP, and Strava — without writing separate authentication flows or data parsers.
What health data sources does Terra support?
Terra connects to 500+ health data sources including wearables (Garmin, Fitbit, Apple Watch, Oura Ring, WHOOP, Polar, Samsung Health, Withings, Suunto, Wahoo), fitness apps (Strava, MyFitnessPal, Cronometer), blood testing providers, CGM devices, medical devices, and sensors.
What types of health data does Terra provide?
Terra provides 5,000+ standardised health metrics including granular sleep stages and latency, workouts and activity, nutrition, heart rate, HRV, VO2max, blood oxygen (SpO2), continuous glucose monitoring (CGM), menstrual cycle, and body composition. Full data type reference is available at docs.tryterra.co.
Is Terra HIPAA and GDPR compliant?
Yes. Terra is HIPAA compliant, GDPR compliant, and SOC 2 Type II certified. All health data is encrypted in transit and at rest. Terra is built for healthcare applications, clinical research, insurance, and enterprise health platforms.
How does Terra API pricing work?
Terra uses usage-based pricing — you only pay for the active users you have. Plans start at $399 per month on the annual plan. All data types and integrations are included with no per-endpoint fee.
Do I need to build separate integrations for each wearable?
No. Terra's single API normalises data across all 500+ supported providers. Integrate once and gain access to data from Garmin, Fitbit, Apple Health, Oura, WHOOP, Strava, and hundreds more with a consistent data schema regardless of source.
Does Terra support real-time health data streaming?
Yes. Terra's WebSocket Streaming API delivers real-time sensor data — such as beat-by-beat heart rate — from wearable devices to your application, enabling live biometric dashboards and continuous monitoring.

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